Skip to main content
Glama
@guardbee/mcp-security-proxy

@guardbee/mcp-security-proxy

Official

toxic_flow_auditor__audit_catalog

Audits a tools/list JSON catalog for the lethal trifecta—untrusted content, sensitive data, and exfiltration/destruction on one MCP server—and returns an A–F grade.

Instructions

Audit a tools/list-shaped JSON catalog for the lethal trifecta (toxic flow): untrusted content + sensitive/private data + exfiltration or destruction on the same MCP server. Returns an A–F grade.

Input Schema

NameRequiredDescriptionDefault
labelNoOptional label for the server/catalog
catalogYesJSON array of tools, or { tools: [...] } from tools/list

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changedv0.1.5
    • changedInput schema / $schema
      Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"
  2. Addedv0.1.1

TDQS

A3.8/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description carries the full disclosure burden and does so reasonably: it states what is detected (three co-occurring properties) and what is returned (an A–F grade). It stops short of explaining the grading criteria or confidence, but the behavioral profile is clear.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two tight sentences: the detection target and the return value. Front-loaded with the purpose and no filler.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For an audit tool with no output schema and no annotations, the description covers purpose, detection basis, and return type adequately. It leaves the grade's meaning and any severity breakdown unexplained, a minor gap given the absent output schema.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so both 'catalog' and 'label' are already documented. The description reinforces the catalog shape (tools/list-shaped) but adds no syntax or format detail beyond the schema, so the baseline of 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb (Audit) and resource (a tools/list-shaped JSON catalog) and names the concrete threat model (lethal trifecta). It is clearly a catalog-level audit rather than file/directory scanning, though it doesn't explicitly name its siblings to differentiate.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Usage is implied: hand it a tools/list catalog when you have one. But there is no explicit when-to-use/when-not guidance, no mention of when to prefer scan_file/scan_directory/scan_source instead, and no prerequisites.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Deploy Server

Other Tools